Paypal-webapi

从这里获取了部分代码，然后进行了一些封装。

install

npm install paypal-webapi

How to use

var Paypal = require("paypal-webapp");
var paypal = new Paypal();
paypal.init(clientid,secret);
//{total:10,currency:"USD",detail:"megeg"}
paypal.createPayment(data,cb);//创建订单
paypal.checkPayment(data,cb);//check订单

Notices

only 4 linux

流程图

Client		Your Server					Paypal Server
	|			|							|
	|			|---- getAccessToken------->|
	|			|							|
	|			|<----------accessToken-----|
	|--buy----->|							|
	|			|-------createPayment------>|
	|			|							|
	|			|<------returPaymentinfo----|
	|<--payuri--|							|
	|			|							|
	|------------deal the payment---------->|
	|			|							|
	|			|<--------payment orderid---|
	|			|							|
	|			|-------check payment------>|
	|			|							|
	|			|<------payment info -------|